<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    header {
      width: 100%;
      height: 60px;
      background-color: red;
      padding: 200px;
      box-sizing: border-box;
    }

    article {
      width: 500px;
      height: 200px;
      background-color: rgb(124, 84, 84)
    }

    aside {
      width: 500px;
      height: 200px;
      background-color: rgb(35, 9, 74);
    }

    .con {
      display: flex;
      justify-content: space-between;
    }

    footer {
      width: 1000px;
      height: 50px;
      background-color: rgb(15, 15, 15);
    }
  </style>
</head>

<body>
  <!-- 头部 -->
  <header>头部</header>
  <div class="con">
    <!-- 文字区域 -->
    <article>文章
      <section>部分</section>
    </article>
    <aside>
      侧栏
    </aside>
  </div>
  <!-- 底部 -->
  <footer>底部</footer>
  <!-- 进度条 -->
  <progress value="80" max="100"></progress>
  <input type="text" list="sel">
  <datalist id="sel">
    <option value="左丘红婷">李唯一</option>
    <option value="姜宁">李唯一</option>
    <option value="杨青溪">李唯一</option>
  </datalist>
  <!-- 嵌入 -->
  <embed src="./1.txt" type="">
</body>

</html>